On this parts fiche the Screw Tcei M6x35 Uni 5931 is the most specified component.
The 10a Crankcase Bearings [mod:dvl] is made up of components including this Bearing which is the most expensive.
thirty-three components are shown in this Diavel 2018 Uk (diavel Fl) D170-00018 10a Crankcase Bearings [mod:dvl] exploded diagram.